Question Details

(Solved) Solve the following........ In a multiple regression model using


Solve the following........


In a multiple regression model using 400 students to explain college grade point average, the following explanatory variables and a constant term equal to 1 are initially included in the regression: high school GPA, ACT score, number of credits completed, mother's years of education, and father's years of education. The R^2 is .5. When the two parents' education variables are dropped, the R^2 becomes .4. Are the parents' education variables significant at the 1% significance level? Specifically, state the null and alternative hypotheses, relevant test statistic, critical value, and a short explanation for how you reached your conclusion. (Hint: remember that the lectures and the book both explain how to conduct an F-test of joint significance using R^2 values from two regressions)

Consider the following estimated regression that is the augmented version of the model to explain the standardized outcome on a final exam from question 1:

1.2964+.0062atndrte-1.4911priGPA-.118ACT+.3589priGPA^2 +.0043ACT^2

(1.2298)    (.0023)              (.4694)      (.0982)        (.0886)      (.0022)

n = 680;              R^2 = .2267            SSR = 514.0371

  • According to this estimated regression, at about what prior college grade point average does the standardized outcome on the final exam reach its lowest level, other things equal?

b. Suppose there are two students who are otherwise identical, except that student A had an ACT score that was 10 points higher than that of student B. According to this estimated regression, what is the predicted difference in the standardized outcome on the final exam between student A and student B, other things equal?

c. Suppose that hwrte (percentage of homework turned in) is positively correlated with atndrte and has a direct positive effect on stndfnl. What would happen to the estimated coefficient of atndrte if hwrte were added into the above regression?

 


Solution details:

Pay using PayPal (No PayPal account Required) or your credit card . All your purchases are securely protected by .
SiteLock

About this Question

STATUS

Answered

QUALITY

Approved

DATE ANSWERED

Oct 15, 2019

EXPERT

Tutor

ANSWER RATING

YES, THIS IS LEGAL

We have top-notch tutors who can do your essay/homework for you at a reasonable cost and then you can simply use that essay as a template to build your own arguments.

You can also use these solutions:

  • As a reference for in-depth understanding of the subject.
  • As a source of ideas / reasoning for your own research (if properly referenced)
  • For editing and paraphrasing (check your institution's definition of plagiarism and recommended paraphrase).
This we believe is a better way of understanding a problem and makes use of the efficiency of time of the student.

NEW ASSIGNMENT HELP?

Order New Solution. Quick Turnaround

Click on the button below in order to Order for a New, Original and High-Quality Essay Solutions. New orders are original solutions and precise to your writing instruction requirements. Place a New Order using the button below.

WE GUARANTEE, THAT YOUR PAPER WILL BE WRITTEN FROM SCRATCH AND WITHIN A DEADLINE.

Order Now